DIN1630 ST37.4 Seamless Steel Pipe

Grade:

St37.4

Outer diameter:

10.3-711mm

Wall thickness:

2-100mm

Length:

5.8-12m or random

Specification

Product Details

DIN1630 St 37.4 seamless steel pipe upper yield stress for a design temperature

Steel grade

Upper yield stress for a design temperature

Symbol

Material number

50°C

200°C

250°C

300°C

and a wall thickness

≤16

>16 ≤40

>40 ≤65

≤16

>16≤40

>40≤65

≤16

>16 ≤40

>40 ≤65

≤16

>40 ≤65

N/mm2

St 37.4

1.0255

235

225

215

185

175

170

165

155

150

140

135

130

Chemical composition
Steel grade		Type of deoxidation (RR.fully killed)	Chemical composition, % by mass					Addition of nitrogen fixing elements (e.g.no less than 0.020% Al total)
Symbol	Material number		C	Si	Mn	P	S
			max			max
St 37.4	1.0255	RR	0.17	0.35	>=0.35	0.040	0.040	Yes

DIN1630 St 37.4 seamless steel pipe mechanical property

Steel grade		Upper yield stress Reh for wall thickness in mm			Tensile strength Rm N/mm2	Elongation after fracture A5		Impact energy ISO V-notch test pieces at+20°C
Symbol	Material number	Up to 16	16-40	40-65		longitudinal	transverse	longitudinal	transverse
		N/mm2 min				% min		/ min
St 37.4	1.0255	235	225	215	350 to 480	25	23	43	27

St37.4 Pipe Sizes Table

Designation of Diameter		O/D	Nominal Wall Thickness
Designation of Diameter		DIA	SCH.5S		SCH.5		SCH 10S		SCH.10		SCH.20S		SCH.30		SCH.40S		SCH.40		SCH 60
(A)	(B)	Meter MM	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr
6	1/8	10.3	1	0.23			1.2	0.27			1.5	0.33			1.73	0.37
8	1/4	13.7	1.2	0.37			1.65	0.49			2	0.58			2.24	0.64
10	3/8	17.2	1.2	0.47			1.65	0.63			2	0.74			2.31	0.87
15	1/2	21.3	1.65	0.01	1.65	0.81	2.11	1.02	2.11	1.02	2.5	1.15			2.77	1.29
20	3/4	26.7	1.65	1.03	1.65	1.03	2.11	1.3	2.11	1.3	2.5	1.49			2.87	1.71
25	1	33.4	1.65	1.31	1.65	1.31	2.77	2.13	2.77	2.13	3	2.24			3.38	2.54
32	11/4	24.2	1.65	1.67	1.65	1.67	2.77	2.73	2.77	2.73	3	2.9			3.56	3.44
40	11/2	48.3	1.65	1.93	1.65	1.93	2.77	3.16	2.77	3.16	3	3.35			3.68	4.11
50	2	60.3	1.65	1.93	1.65	2.42	2.77	3.99	2.77	3.99	3.5	4.9			3.91	5.52
65	21/2	73	2.11	3.75	2.11	3.75	3.05	5.34	3.05	5.34	3.5	6			5.16	8.77
80	3	88.9	2.11	4.59	2.11	4.59	3.05	6.56	3.05	6.56	4	8.37			5.49	11.47
90	31/2	101.6	2.11	5.25	2.11	5.25	3.05	7.53	3.05	7.53	4	9.62			5.74	13.78
100	4	114.3	2.11	5.93	2.11	5.93	3.05	8.5	3.05	8.5	4.5	12.18			6.02	6.32
125	5	141.3	2.77	9.61	2.77	9.61	3.4	11.74	3.43	11.74	5	16.8			6.55	2210
150	6	168.3	2.77	11.47	2.77	11.47	3.4	14.04	3.43	14.04	5.5	22.08			7.11	28.69
200	8	219.1	2.77	15	2.77	15	3.76	20.77	3.76	20.27	6.35	33.82	7.04	37.38	8.18	43.2			10.81	53.9
250	10	273.1	3.4	22.95	3.4	22.95	4.19	28.2	4.19	28.2	6.35	42.41	7.8	51.81	9.27	61.22			12.2	82.8
300	12	323.9	3.96	31.72	4.19	33.6	4.57	36.54	4.57	36.54	6.35	50.48	8.38	66.2	9.53	75.01	10.31	80.94	14.27	110.62
350	14	355.6	3.96	34.86			4.78	41.99	6.35	55.53	7.92	68.95	9.53	82.58	9.53	82.58	11.13	96	15.06	128.42
400	16	406.4	4.19	42.2			4.78	48.07	6.35	63.61	7.92	79.03	9.53	94.7	9.53	94.7	12.7	125.2	16.66	162.59
450	18	457.2	4.19	47.46			4.78	54.15	6.35	71.69	7.92	89.1	11.13	124.32	9.53	106.83	14.27	158.27	19.05	209
500	2C	508	4.78	60.23			5.54	69.7	6.35	79.76	9.53	118.93	12.7	157.51	9.53	118.9	15.06	185.89	2062	251.65
550	22	558.8	4.78	65.95			5.54	76.75	6.35	87.84	9.53	131.07	12.7	173.66	9.53	131.07	15.88	216.04	22.23	298.55
600	24	609.6	5.54	83.8			6.35	95.92	6.35	95.92	9.53	143.2	14.27	212.72	9.53	143.2	17.45	258.74	24.59	360.21
650	26	660.4							7.92	129.4	12.7	205.97			9.53	155.32
700	28	711.2							7.92	139.47	12.7	222.13	15.88	276.48	9.53	167.44
750	3C	762	6.35	120.15			7.92	149.55	7.92	149.55	12.7	238.28	15.88	296.68	9.53	179.56
800	32	812.8							7.92	159.62	12.7	254.44	15.88	316.88	9.53	191.69	17.48	348.11
850	34	863.6							7.92	169.64	12.7	270.5	15.88	336.96	9.53	203.74	17.48	370.22
900	36	914.4							7.92	179.77	12.7	286.75	15.88	357.28	9.53	215.93	19.05	427.09

FAQ

Q: Can you provide customized services?
A: Of course, you can send us the product list you need and we will reply to you as soon as possible.

Q: Can you provide samples of your products?

A: Of course you can, but you need to pay the shipping fee.

FAQ

We have a certain scale capacity to ensure your order delivery cycle.

Are you a factory or trading company?

We are professional manufacturer, and our company also is a very professional a trade company for steel products. We can provide a wide range of steel products.

Can I get samples before order ?

Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings.

What is our quality inspection standard?

Our key qualities and services comprise of:
• Quality assured goods
• Multiple payment modes
• Experienced crew
• Prompt shipment
• Ethical business policies
• Wide distribution network

Which certifications have we acquired?

GNEE Steel Pipe has the following certification:
• GST CERTIFICATE
• CERTIFICATE OF INCORPORATION
• CERTIFICATE OF IMPORT EXPORT CODE
• ISO CERTIFICATE
• CE CERTIFICATE
• MANUFACTURING CERTIFICATE

Can GNEE Steel Pipe customise the design as per my requirement?

Yes, GNEE Steel Pipe specializes in precisely manufacturing products according to the customers unique needs and requirements.